@A340

SERVICE BULLETIN

SUMMARY

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

This summary is for information only and is not approved for modification of the aircraft.

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 27

TITLE: FLIGHT CONTROLS - RUDDER TRIM ACTUATION AND ARTIFICIAL

FEEL-INSTALL IMPROVED PFTU ON LR A/C

**CONF ALL

MODIFICATIONS

MODIFICATION CLASSIFICATION

MAJOR 200667S31517

MINOR None

NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the

mass, balance, structural strength, reliability, operational characteristics affecting the

airworthiness of the product. All other changes are major changes.

REASON/DESCRIPTION/OPERATIONAL CONSEQUENCES

Further to some reported cases of abnormal rudder deflections during application of the following tests :

- AMM Task 27-99-00-740-801 Operational test of the Back-up Control Module (BCM) and Back-up

Power Supply (BPS) by Built-In Test Equipment (BITE).

or

- AMM Task 27-99-00-710-801 Operational test of the rudder electrical back-up,

it was detected that an erroneous pedals’ order could be sent by the Pedal Feel and Trim Unit (PFTU)

to the BCM.

The root cause was a broken screw inside the PFTU, involving that the link between the Rotary

Variable differential transducer (RVDT) providing pedals’ position to the BCM and the input shaft was

lost and RVDT could turn on its axis.

Investigations performed at manufacturer’s facility pointed out that screws rupture on PFTU Part

Number (PN) 6259-2 is due to weakening of the screws following bad degasification after surface

treatment during manufacturing process. This scenario is only considered for aircraft with electrical

rudder (post-Mod. No. 49144S16279 (INSTALL RUDDER FLY-BY WIRE ON A330/A340)).

DATE: May 03/10 SERVICE BULLETIN No.: A340-27-4167

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SERVICE BULLETIN

SUMMARY

This Service Bulletin is published to advise operators of A340 aircraft of the issue of SAGEM Service

Bulletin No. 6259-27-006.

The design solution consists in a new grade of screws more robust and addition of self-locking inserts

for the fixation of the RVDT on the input shaft. These improvements under supplier responsibility

(SAGEM) lead to introduce a new PFTU PN 6259-0311.

This Service Bulletin requires modifying the affected PFTU :

- PN 6259-2 modified into PN 6259-0311.

Accomplishment of this Service Bulletin will improve the reliability of the PFTU.

Aircraft dispach with FCPC 3 (PRIM 3) inoperative (MMEL 27-93-01-C) for A340-300 aircraft fitted with

Mod. No. 49144S16279 will be restored only in case both modifications of PFTU post Mod. No.

200667S31517 and BCM post Mod. No. 58118S30423 are fitted on aircraft.

GENERAL EVALUATION

EVALUATION TABLE

COMPLIANCE MANDATORY CANCELS INSPECTION SB NO

POTENTIAL AD YES A/C OPERATION AFFECTED YES

RELIABILITY AFFECTED YES PAX COMFORT AFFECTED NO

COST SAVING NO LROPS AFFECTED NO

STRUCTURAL LIFE EXTN NO VENDOR SB INVOLVED YES

MATERIAL PRICE INFORMATION

MATERIAL PRICE INFORMATION TABLE

MATERIAL SET QTY PER

A/C

PRICE PER

A/C (USD)

MAIN PARTS

Equipment BFEA01 1 See SB PFTU

EFFECTIVITY

This Service Bulletin is applicable to this (these) operator(s) :

FIN MAU SAA SVW SWR THT

CONCURRENT REQUIREMENTS

None

REFERENCES / REPERCUSSIONS

TFU 27.22.52.001

OEB None

AOT None

SIL None

LINE MAINTENANCE AFFECTED No

LIFE LIMIT None

OTHER OIT : SE 999.0058/09

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SERVICE BULLETIN

SUMMARY

NATURE OF THE WORK

AIRCRAFT NO

EQUIPMENT YES

HARD YES

SOFT NO

OBRM NO

MANPOWER

Task 274167-831-801-001: Modification

TOTAL MANHOURS 6.50

ELAPSED TIME (HOURS) 6.50

Additional manhours related to Vendor SB; refer to:

Modify the PFTU (46CS). SAGEM Service Bulletin No.

6259-27-006

APPENDICES

None

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SERVICE BULLETIN

SUMMARY

**CONF ALL

FR4 A

A

46CS

F_SB_274167_5_SAAA_01_01

Figure A-FSAAA - Sheet 01

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@A340

SERVICE BULLETIN

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX

FRANCE

Tel : (33) 5 61 93 33 33

Telex : AIRBU 530526F

Fax : (33) 5 61 93 42 51

MANDATORY MANDATORY MANDATORY

ATA SYSTEM: 27

TITLE: FLIGHT CONTROLS - RUDDER TRIM ACTUATION AND ARTIFICIAL

FEEL-INSTALL IMPROVED PFTU ON LR A/C

MODIFICATION No.: 200667S31517

This document contains AIRBUS PROPRIETARY INFORMATION and shall at all times remain the

property of AIRBUS; no intellectual property right or licence is granted by AIRBUS in connection with

any information contained in it. It is delivered on the express condition that said document and the

information contained in it shall be treated as confidential, shall not be used for any purpose other than

that for which it is hereby delivered. It shall not be disclosed in whole or in part to third parties and shall

not be duplicated in any manner (except for the purposes of performing the tasks described hereunder

and provided that any recipient of such document shall comply with the conditions herein), without

AIRBUS prior written consent.

1. PLANNING INFORMATION

**CONF ALL

A. EFFECTIVITY

NOTE: This Service Bulletin is only applicable to aircraft on which Mod No.

49144S16279 (INSTALL RUDDER FLY-BY WIRE ON A330/A340) is

embodied.

(1) Models

340-313

(2) Effectivity by MSN

0544 0582 0585 0590 0598 0643 0646 0651 0668 0793 0800 0835 0844 0921 0938

0955

(3) Effectivity by Operator

The Operator/MSN relationship is provided for information only and is correct at the time

of issue in accordance with the information available to AIRBUS. Any future changes

resulting from transfer of an aircraft from one operator to another will not be reflected in

this list unless the Service Bulletin is revised for another reason.

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SERVICE BULLETIN

OPERATOR MSN

FIN 0835 0844 0921 0938

MAU 0793 0800

SAA 0544 0582 0590 0643 0646 0651

SVW 0955

SWR 0585 0598

THT 0668

(4) Configuration by MSN

MSN CONFIGURATION

0544 0582 0585 0590 0598 0643 0646 0651 0668 0793 0800

0835 0844 0921 0938 0955

001

(5) Configuration definition

**CONF 001

Config. 01 is valid for all the aircraft given in the effectivity of this Service Bulletin as a

standard configuration.

(6) Material Effectivity

MATERIAL QTY PER A/C SEE NOTES

Equipment BFEA01 1

B. CONCURRENT REQUIREMENTS

None

C. REASON

(1) History

Further to some reported cases of abnormal rudder deflections during application of the

following tests :

- AMM Task 27-99-00-740-801 Operational test of the Back-up Control Module (BCM)

and Back-up Power Supply (BPS) by Built-In Test Equipment (BITE).

or

- AMM Task 27-99-00-710-801 Operational test of the rudder electrical back-up,

it was detected that an erroneous pedals’ order could be sent by the Pedal Feel and

Trim Unit (PFTU) to the BCM.

The root cause was a broken screw inside the PFTU, involving that the link between the

Rotary Variable differential transducer (RVDT) providing pedals’ position to the BCM and

the input shaft was lost and RVDT could turn on its axis.

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SERVICE BULLETIN

Investigations performed at manufacturer’s facility pointed out that screws rupture on

PFTU Part Number (PN) 6259-2 is due to weakening of the screws following bad

degasification after surface treatment during manufacturing process. This scenario is

only considered for aircraft with electrical rudder (post-Mod. No. 49144S16279 (INSTALL

RUDDER FLY-BY WIRE ON A330/A340)).

(2) Objective/Action

This Service Bulletin is published to advise operators of A340 aircraft of the issue of

SAGEM Service Bulletin No. 6259-27-006.

The design solution consists in a new grade of screws more robust and addition of selflocking inserts for the fixation of the RVDT on the input shaft. These improvements

under supplier responsibility (SAGEM) lead to introduce a new PFTU PN 6259-0311.

This Service Bulletin requires modifying the affected PFTU :

- PN 6259-2 modified into PN 6259-0311.

(3) Advantages

Accomplishment of this Service Bulletin will improve the reliability of the PFTU.

(4) Operational/Maintenance Consequences

Aircraft dispach with FCPC 3 (PRIM 3) inoperative (MMEL 27-93-01-C) for A340-300

aircraft fitted with Mod. No. 49144S16279 will be restored only in case both

modifications of PFTU post Mod. No. 200667S31517 and BCM post Mod. No.

58118S30423 are fitted on aircraft.

D. DESCRIPTION

To accomplish this Service Bulletin it is necessary to :

Task 274167-831-801-001: Modification

(1) Remove the PFTU (46CS) from the Avionics Compartment.

(2) Modify the PFTU (46CS).

(3) Install the PFTU (46CS) in the Avionics Compartment.

E. COMPLIANCE

(1) Classification

MANDATORY

(2) Accomplishment Timescale

Accomplishment of this Service Bulletin is expected to be rendered mandatory by the

issue of an Airworthiness Directive (AD) published by the European Aviation Safety

Agency (EASA). The accomplishment timescale, which has not yet been defined, will be

given in the AD.

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SERVICE BULLETIN

F. APPROVAL

Approved under EASA Design Organisation Approval No. EASA 21J.031.

If an aircraft listed in the effectivity has a modification or repair embodied that is not of

AIRBUS origin, and which affects the content of this Service Bulletin, the operator is

responsible for obtaining approval by its airworthiness authority for any adaptation necessary

before incorporation of the Service Bulletin.

G. MANPOWER

The manpower estimates given in this Service Bulletin are based on the direct labor cost to

do the work. These estimates assume that the work will be done by experienced personnel,

and may need to be revised upwards to suit operator’s circumstances. The estimates do not

include the time to prepare, plan or inspect the work. Manufacture and procurement of parts

and tools, drying times for paints, sealants, etc., and general administration work are also not

included.

Task 274167-831-801-001: Modification

Get Access 1.00

On Aircraft

Remove the PFTU (46CS) from the Avionics

Compartment.

1.00

Install the PFTU (46CS) in the Avionics Compartment. 2.00

Tests 1.50

Close-Up 1.00

TOTAL MANHOURS 6.50

ELAPSED TIME (HOURS) 6.50

Additional manhours related to Vendor SB; refer to:

Modify the PFTU (46CS). SAGEM Service Bulletin No.

6259-27-006

H. WEIGHT AND BALANCE

Not Changed

I. ELECTRICAL LOAD DATA

Not Changed

J. REFERENCES

Aircraft Maintenance Manual (AMM) 12-34-24 27-22-52 27-99-00

ATA Common Support Data Dictionary (CSDD),

Chapter 2

Elec. Std. Practices Manual (ESPM) 20-55-00

Master Minimum Equipment List (MMEL) MMEL 27-93-01-C

Vendor Service Bulletin (VSB) SAGEM Service Bulletin No.

6259-27-006

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SERVICE BULLETIN

K. PUBLICATION AFFECTED

Aircraft Wiring List (AWL)

Illustrated Parts Catalog (IPC) 27-22-01 27-22-52

Master Minimum Equipment List (MMEL)

This Service Bulletin has an operational impact. Please inform AIRBUS, at least four weeks

in advance, in case you need your operational documentation to be amended by an

intermediate revision prior to Service Bulletin embodiment. For this purpose, please request

the intermediate revision by fax, telex or mail to :

SEDCC, AIRBUS - Customer Services Directorate

Fax No.: 33 (0) 5 61 93 28 06

Sita No.: TLSBP7X

E-mail: sb.reporting@airbus.com

These amendments will be confirmed by the next normal revision of operational

documentation, once your Service Bulletin accomplishment report has been sent, as usual, to

our Customer Services Directorate (SEDCC).

L. INTERCHANGEABILITY/MIXABILITY

DESCRIPTION OLD PART N ̊ NEW PART N ̊ INT MIXABILITY SEE

NOTES

PFTU 6259-2 6259-0311 01 Not

Applicable

NOTE: For definitions of interchangeability codes in column INT., refer to ATA

Common Support Data Dictionary (CSDD), Chapter 2.

M. SPARES

PFTU 6259-2

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SERVICE BULLETIN

This Page Intentionally Left Blank

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SERVICE BULLETIN

2. MATERIAL INFORMATION

**CONF ALL

A. MATERIAL - PRICE AND AVAILABILITY

(1) Procurement Addresses

Equipment BFEA01 Modification of removed equipment should

be negotiated directly with SAGEM as per

instructions given in Service Bulletin No.

6259-27-006.

(2) Price and Availability

Equipment BFEA01

Refer to SAGEM Service Bulletin No. 6259-27-006 for the equipment modification sales

terms.

B. INDUSTRY SUPPORT INFORMATION

For Equipment BFEA01, refer to SAGEM for the industry support terms.

C. LIST OF COMPONENTS

No Kit

D. LIST OF MATERIALS - OPERATOR SUPPLIED

(1) Consumable Materials

NOTE: To accomplish this Service Bulletin it is necessary to use the expendable

parts listed in the AMM Task 27-22-52-400-801.

(2) Components

None

(3) Equipment

Equipment BFEA01

ITEM NEW PART N ̊ QTY (UM) KEYWORD ITEM OLD PART N ̊ INT SEE

NOTES

6259-0311 1 PFTU 6259-2 01 (1)

NOTE: For definitions of interchangeability codes in column INT., refer to ATA

Common Support Data Dictionary (CSDD), Chapter 2.

NOTE (1): Modification of removed equipment should be negotiated directly with

SAGEM as per instructions given in Service Bulletin No. 6259-27-006.

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SERVICE BULLETIN

E. PARTS TO BE RE-IDENTIFIED BY OPERATOR

None

F. TOOLING

(1) Tooling - Price and Availability

None

(2) Tools

NOTE: To accomplish this Service Bulletin it is necessary to use the tools listed

in the AMM Task 27-22-52-000-801 and AMM Task 27-22-52-400-801.

(3) Special Tools

None

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SERVICE BULLETIN

3. ACCOMPLISHMENT INSTRUCTIONS

Task 274167-831-801-001 - Modification

WARNING: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS

INCLUDED IN THE REFERENCED PROCEDURES.

CAUTION: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP

ELECTRICAL WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY

AND MECHANICALLY SERVICEABLE). WHEN YOU DO MAINTENANCE

WORK, REPAIRS OR MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING,

COMPONENTS AND THE WORK AREA AS CLEAN AS POSSIBLE. TO DO

THIS:

- PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC; AS

NECESSARY ON WIRING AND COMPONENTS.

- REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND

OTHER CONTAMINATION.

THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION

AND DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.

IN CASE OF CONTAMINATION REFER TO ESPM 20-55-00.

Task Associated Data

Modified FIN

46CS

Manpower

TOTAL MANHOURS 6.50

ELAPSED TIME (HOURS) 6.50

Additional manhours related to Vendor SB; refer to:

SAGEM Service Bulletin No. 6259-27-006

A. GENERAL

(1) Subtask 274167-839-001-001 - Administrative

Manpower Resources

Skills NON SPECIFIC

Write in the applicable aircraft records that you have done all the work given in this

Service Bulletin.

B. PREPARATION

(1) Subtask 274167-941-001-001 - Job Set-up

Manpower Resources

Skills NON SPECIFIC

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SERVICE BULLETIN

References

Aircraft Maintenance Manual (AMM) Task 12-34-24-860-802

Task 27-22-52-000-801

(a) Make sure that the aircraft is electrically grounded, (Refer to AMM Task

12-34-24-860-802).

(b) Put the access platform(s) in position.

(c) Do the preparation procedure as specified in the removal of the PFTU (46CS),

(Refer to AMM Task 27-22-52-000-801).

C. PROCEDURE

(1) Subtask 274167-831-001-001 - Remove the PFTU (46CS) from the Avionics

Compartment.

Manpower Resources

Manhours 1.00

Minimum number of person 1

Subtask elapsed time 1.00

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 27-22-52-000-801

(a) Remove (Refer to AMM Task 27-22-52-000-801) :

FIN 46CS

1 PFTU 6259-2

(2) Subtask 274167-831-002-001 - Modify the PFTU (46CS).

References

Vendor Service Bulletin (VSB) SAGEM 6259-27-006

(a) Modify the PFTU (46CS), (Refer to SAGEM Service Bulletin No. 6259-27-006).

(3) Subtask 274167-831-003-001 - Install the PFTU (46CS) in the Avionics

Compartment.

Manpower Resources

Manhours 2.00

Minimum number of person 1

Subtask elapsed time 2.00

Skills NON SPECIFIC

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SERVICE BULLETIN

Material necessary to do the job

Equipment BFEA01

ITEM NEW PART N ̊ QTY (UM) KEYWORD SEE

NOTES

6259-0311 1 PFTU (1)

NOTE (1): Modification of removed equipment should be negotiated directly with

SAGEM as per instructions given in Service Bulletin No. 6259-27-006.

References

Aircraft Maintenance Manual (AMM) Task 27-22-52-400-801

(a) Install (Refer to AMM Task 27-22-52-400-801) :

FIN 46CS

1 PFTU 6259-0311

D. TEST

(1) Subtask 274167-700-001-001 - Testing

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 27-22-52-400-801

(a) Do the test after removal/installation of the PFTU (46CS), (Refer to AMM Task

27-22-52-400-801).

E. CLOSE-UP

(1) Subtask 274167-942-001-001 - Close-up Procedure.

Manpower Resources

Skills NON SPECIFIC

References

Aircraft Maintenance Manual (AMM) Task 27-22-52-400-801

(a) Do the close-up procedure as specified in the installation of the Pedal Feel and

Trim Unit (46CS), (Refer to AMM Task 27-22-52-400-801).

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SERVICE BULLETIN

REPORTING SHEET

TITLE: FLIGHT CONTROLS - RUDDER TRIM ACTUATION AND ARTIFICIAL

FEEL-INSTALL IMPROVED PFTU ON LR A/C

MODIFICATION No.: 200667S31517

Please complete the appropriate item (A or B):

A - SB WILL BE embodied YES/NO (if NO please comment)

If YES, aircraft concerned (as per SB effectivity by default) and planned dates (month/year) of

embodiment:

B - SB HAS BEEN embodied on aircraft:

Operator comments:

From Airline:

Name/Title:

Signature: Date:

If operational documentation is affected (see Paragraph 1.K of this SB): If information is needed prior to

next normal revision or prior to SB embodiment, please indicate required service(s):

Either: Modification Operational Impact (MOI), if available YES/NO

Or : Intermediate revision YES/NO

Important Information: This SB will only be incorporated in your maintenance and operational

documentation if this sheet is returned to Airbus and signed by a duly authorised representative. With

the next feasible revision, this will result in

- Updating of maintenance documentation to show pre and post SB data.

- Updating of maintenance and operational documentation to show post SB data after embodiment.

If this SB requires previous or simultaneous accomplishment of other SBs, Airbus shall automatically

include them in the manual revisions. Refer to SIL 00-037 for detailed information.

Please return this completed sheet to:

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX FRANCE

Attn: SDC32 Technical Data and Documentation Services

FAX: (+33) 5 61 93 28 06

e-mail: sb.reporting@airbus.com

or via your Resident Customer Support Office.

Alternatively, SB lists via letters or fax are also accepted.

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SERVICE BULLETIN

QUALITY PERCEPTION FORM

Use this form to tell us what is your perception of the quality of this Service Bulletin. The reported data

that you provide us will be used to analyse areas of difficulties and to take corrective action to further

improve the quality of our Service Bulletins.

We thank you for the time you have taken in completing this form.

(Please rate on a scale of 1 to 4, with 4 being the highest score)

- Quality rating of this SB 4 3 2 1

- Quality rating of the Accomplishment Instructions 4 3 2 1

- Quality rating of the Illustrations 4 3 2 1

- Is this SB easy to understand ? Y / N

If you have had difficulties in the accomplishment of this SB please quote below the area(s) and give a

short description of the issue.

Planning Material Instructions

X Effectivity X Kit content X Preparation

X Reason X List of Materials Operator Supplied X Mod/Inspection

X Manpower X Industry support X Test

X References X Re-identification X Close-Up

X Publication X Tooling X Illustrations

Comments:

Operator: Date:

Name/Title:

Please return this form to:

AIRBUS

CUSTOMER SERVICES DIRECTORATE

1 Rond Point Maurice Bellonte

31707 BLAGNAC CEDEX FRANCE

Attn : SEM4 Service Bulletins Management

FAX : (33) 5 61 93 42 51

Or via your Resident Customer Support Office.

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